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Reply to the Discussion by C. Shi of the Paper "Estimating the Electrical Conductivity of Cement Paste Pore Solution From OH-, K+, and Na+ Concentrations".


pdf icon Reply to the Discussion by C. Shi of the Paper "Estimating the Electrical Conductivity of Cement Paste Pore Solution From OH-, K+, and Na+ Concentrations". (396 K)
Snyder, K. A.

Cement and Concrete Research, Vol. 35, No. 2, 421-422, February 2005.

Keywords:

cement paste; electrical conductivity

Abstract:

Shi et al. have applied an equation for solution equivalent conductivities (denoted by A) to the problem of estimating species equivalent conductivities (denoted by A.), with potentially pathological consequences, as I will show. For completeness, I will address some of Dr. Shi's statements one at a time: Estimation of the electrical conductivity of mixed solutions. ..is discussed and demonstrated in most physical chemistry and electrochemistry textbooks. Actually, the electrical conductivity of solutions composed of binary salts is discussed in most textbooks. As these are textbooks, they typically limit the discussion to simple salts and leading order concentration dependence. Most textbooks give Kohlrausch's equation for the solution electrical conductivity A.